package day10;

public class baozhuangc {
	public static void main(String[] args) {
		String str = Double.toString(3.14);
		String str1 = Integer.toString(2);
		String str2 = "23";
		Integer i = Integer.parseInt(str2);
		System.out.println(i);
		String str3 = "3.14";
		Double j = Double.parseDouble(str3);
		System.out.println(j);
		String l = "true";
		Boolean e = Boolean.parseBoolean(l);
		System.out.println(e);
	}

}
